Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift from August to September is characterized by an average high-temperature of a still comfortable 19.5°C (67.1°F), not significantly different from the 17.8°C (64°F) of August. September nights in Risso cool down to an average low-temperature of 9.2°C (48.6°F).Humidity
In September, the average relative humidity in Risso is 79%.Rainfall
In Risso, in September, it is raining for 10.5 days, with typically 59mm (2.32") of accumulated precipitation. Throughout the year, there are 111.9 rainfall days, and 698mm (27.48") of precipitation is accumulated.Daylight
In Risso, Uruguay, the average length of the day in September is 11h and 54min.On the first day of the month, sunrise is at 07:07 and sunset at 18:32. On the last day of September, sunrise is at 06:27 and sunset at 18:52 -03.
Sunshine
The average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Risso is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the average September temperature in Risso?
What is the average humidity in September in Risso?
How much does it rain in Risso in September?
What is the average length of the day in September in Risso?
When are sunrise and sunset in September in Risso?
How long on average sun shines in September in Risso?
What is the UV index intensity in September in Risso?
Average temperature in September
Risso, Uruguay
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is January (32.4°C).
The month with the lowest average high temperature is July (15.1°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (6.9°C).
Average pressure in September
Risso, Uruguay
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).
Average wind speed in September
Risso, Uruguay
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is September (13.2km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).
Average humidity in September
Risso, Uruguay
- Average humidity in September: 79%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is January (57%).
Average rainfall in September
Risso, Uruguay
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is February (80mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in September
Risso, Uruguay
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is October (11.7 days).
The month with the least rainy days is June (7 days).
Average daylight in September /
Average sunshine in September
Risso, Uruguay
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in September
Risso, Uruguay
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is June (21.7 days).
The month with the least sunshine days is September (17.6 days).
Average UV index in September
Risso, Uruguay
- Average UV index in September: 4
The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is May (UV index 3).
Average cloud cover in September
Risso, Uruguay
- Average cloud cover in September: 36
The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in September
Risso, Uruguay
- Average visibility in September: 9km
The month with the highest visibility is January (10km).
The month with the lowest visibility is May (8km).
Risso, Uruguay
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